Disintegration of Mesoporous Structures of MCM-41 and MCM-48 in Water

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It has been found that mesoporous structures of MCM-41 and MCM-48 disintegrate readily in distilled water around 370 K, while the structures can be stable in 100%-steam of 1 atmospheric pressure at much higher temperatures around 820 K. Thus, the structure disintegration is thermodynamically more favorable in water than under the steaming condition. X-ray powder diffraction and magic angle spinning Si-29 NMR spectroscopy indicate that the disintegration of the mesoporous structures in water occurs due to silicate hydrolysis.
Publisher
대한화학회
Issue Date
1996-01
Language
English
Citation

BULL. KOREAN. CHEM. SOC, v.17, no.1, pp.66 - 68

ISSN
0253-2964
URI
http://hdl.handle.net/10203/13122
Appears in Collection
CH-Journal Papers(저널논문)
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